Release ownership of the underlying native handle.
native_handle_type release( boost::system::error_code & ec);
This function causes all outstanding asynchronous operations to finish
immediately, and the handlers for cancelled operations will be passed
boost::asio::error::operation_aborted error. Ownership
of the native handle is then transferred to the caller.
Set to indicate what error occurred, if any.
This function is unsupported on Windows versions prior to Windows 8.1,
and will fail with
on these platforms.